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Ford Powerstroke 03-07 6.0L Discussion of 6.0 Liter Ford Powerstroke Turbo Diesels
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  #1  
Old 07-01-2012, 03:34 PM
Curry's Avatar
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Default loud whistle under hood?

I have a 2007 f250 6.0 with egr delete, studs, gaskets, sct. The other day i was driving to the beach and started to hear a loud whistle or whine from under the hood.so i pulled over but it stopped. Only seems tohappen when foots on the pedal. A little bit of turbo lag not a huge diff. What could this be? Btw i checked boots best i could didnt feel any rips.

Curry's Sig:
07 F250 6.0 - 8" lift, 38x15.50R20 MTZ, Fuel Hostage 20x14, Ouo Traction Bars, PMF HD Draglink, DC Power SPX-i 320 AMP Alt
Studded, Ford Gaskets, EGR Delete, Oil Cooler, aFe Intake, Blue Spring, 4" Turbo Back, Suncoast TQ Converter, Bestop PowerBoards
SCT - (Looney Wild, SRL+), Atlas 40 FICM, Sinister Coolant System, Edge Insight CTS, WestTexas Hydro Asisst, Airchime K5LA
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  #2  
Old 07-01-2012, 04:42 PM
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Sometimes the boots can rip at the very edge of the clamps where you can't feel the damage, it's best to remove the boots for inspection. Usually it's the boot coming off the turbo.


Check your flex joints on the exhaust up-pipe/y-pipe. Common for the flex joints to crack. Visually look for soot on piped, firewall and surrounding area. When the motor is cool, start her up and use your hand to feel for air/exhaust leaks at the flex joints.

Lilpooh's Sig:'04 King Ranch CC DRW 6.0 X-3 tunes by DJ,QT,GH,ID,head studs,II Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,Snow Perf stage II,EGR delete,AD2,4" turbo back straight pipe,S&B intake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv,billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,Hi idle mod.
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  #3  
Old 07-01-2012, 11:39 PM
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most likely its a ruptured plastic cooler tube, they tend to whistle, boots tend to whoosh.

bobfbigman's Sig:O4 f350 crewcab SRW shortbed, Edge juice with attitude,Banks intercooler,Magnaflow 5" exhaust,CFM intake, Injen air intake, Amsoil bypass system, EGr went bybye,stock tire size,250k and still kickin, only parts replaced have been ICP and ball joints,drag link.....
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  #4  
Old 07-02-2012, 01:04 AM
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Could it be that even if it doesn't happen all the time? And its a very loud whistle. Kinda hurts your ears if another cars beside you.
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  #5  
Old 07-04-2012, 10:43 AM
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The y-pipe flex joints are real common, also the the y-pipe and downpipe connections to the back of the turbo are common for that if not seated properly. pretty noticeable by the eidence ofblack soot like lilpooh said earlier. but also check all turbo connections, CAC boots and all, maybe the egr valve hole, sometimes the metallic gasket wears down and blows out. Or if you have the full egr delete its an o-ring from that kit.
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  #6  
Old 07-08-2012, 01:10 PM
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Ive searched every thing the best I could but couldn't find the source. Turbo spools up but feels like I have some turbo lag. Noise gets louder the higher the rpms.
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  #7  
Old 07-08-2012, 09:08 PM
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Find a trustworthy friend, put the truck in drive with 4x4 engaged and the brakes on hard, and try spooling it up in the driveway and have that trustworthy friend try and find the leak. The key is not to run said buddy over.

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  #8  
Old 07-09-2012, 06:01 AM
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Ill give that a try. Just a few mins ago i got to work and saw some white smoke after start up. Ended up with dtc P0401 egr?
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  #9  
Old 07-09-2012, 07:36 AM
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It's just a code from your EGR delete. The check engine light isn't on right?
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  #10  
Old 07-09-2012, 08:21 AM
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Its on now but i programmed my truck back to stock to check for codes.
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